如何獲取字符串數組中字符的索引位置

Question

如何獲得字符串c中字符索引位置chars？

public static final String[] chars = new String[]{"A","B","C","D","E","F"}; 
String c = "E"; 

// the answer is 4. 

Answer 1

這裏是解決方案，希望這可以幫助你

String[] src = new String[]{"A","B","C","D","E","F"}; 
    int biggerWher = Arrays.asList(src).indexOf("E"); 
    System.out.println(biggerWher); 

Answer 2

如果你的數組進行排序，可以使用

Arrays.binarySearch（）

int answer = Arrays.binarySearch(chars, c); 
return answer; 

如被提及。否則使用for循環。

for (int i=0; i<chars.length; ++i) { 
    if (s[i].equals(c)) { 
     return i; 
    } 
}